It used to be the first million. Now, you only turn heads when you hit a billion.

Warren Buffett, the iconic chairman and CEO of Berkshire Hathaway, is worth $53.5 billion. He wasn’t always. But Buffett started early. When the “Sage of Omaha” was in high school, he spent $25 on a pinball machine that he put in a barbershop. With an eye for a good investment, Buffett ended up selling the pinball machine for $1,200, according to this infographic compiled by eBay Deals. He bought his first stock at age 11 and started at the Wharton School of Business at University of Pennsylvania at age 17.